Patent · US Active

System, device and methods for replacing the intervertebral disc with a magnetic or electromagnetic prosthesis

US7811328B2 · kind B2 · utility

116Cited by

12References

20Claims

0Family size

Assignee

Warsaw Orthopedic, Inc.

Inventors

Fred J. Molz, IV · Collierville, US
Thomas A. Carls · Memphis, US
Aurelien Bruneau · Memphis, US
Eric C. Lange · Collierville, US
Matthew M. Morrison · Cordova, US
Jonathan M. Dewey · Memphis, US
Kent M. Anderson · San Jose, US

Key dates

Filing date	Apr 29, 2005
Grant date	Oct 12, 2010
Priority date	—
Expiry date	Jul 4, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2250/0004
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

One embodiment of the present application includes a spinal disk prosthesis with one end portion to form a load transmitting relationship with one vertebra of a patient's spine and another end portion to form a load transmitting relationship with another vertebra of the patient's spine. A tube connects the end portions together and a damping material is positioned inside the tube. The end portions each include a magnet to generate a corresponding magnetic field. These magnetic fields are oriented to provide a repulsive force between the end portions to provide a magnetic bearing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.